3 papers
cs.IT2025
New Capacity Bounds for PIR on Graph and Multigraph-Based Replicated Storage
Xiangliang Kong, Shreya Meel, Thomas Jacob Maranzatto +2
In this paper, we study the problem of private information retrieval (PIR) in both graph-based and multigraph-based replication systems, where each file is stored on exactly two se…
cs.IT2024
Private Counterfactual Retrieval With Immutable Features
Shreya Meel, Pasan Dissanayake, Mohamed Nomeir +2
In a classification task, counterfactual explanations provide the minimum change needed for an input to be classified into a favorable class. We consider the problem of privately r…
cs.IT2024
HetDAPAC: Distributed Attribute-Based Private Access Control with Heterogeneous Attributes
Shreya Meel, Sennur Ulukus
Verifying user attributes to provide fine-grained access control to databases is fundamental to an attribute-based authentication system. In such systems, either a single (central)…